2013 Ford F350 Super Duty Super Cab Owner Manual Printing 3 - Page 212

Four-Wheel Drive (If Equipped) 4X4 LOW - Continuously illuminates when 4L is selected. 211 CHECK 4X4 - Displays when a 4X4 fault is present. Using a Manual Shift On Stop (MSOS) 4wd system (if equipped) Note: High shift efforts may be encountered when attempting to shift into and out of 4x4 modes. It is recommended to allow the vehicle to roll at a speed below 3 mph (5 km/h) when shifting between modes. • 2H (2WD): For general on-road driving. Sends power to the rear wheels only and should be used for street and highway driving. Provides optimal smoothness and fuel economy at high speeds. • 4H (4x4 High): Used for extra traction such as in snow or icy roads or in off road situations. This mode is not intended for use on dry pavement. • N (Neutral): Only used when towing the vehicle. No power to front or rear wheels. • 4L (4x4 Low): Uses extra gearing to provide maximum power to all four wheels at reduced speeds. Intended only for off road applications such as deep sand, steep grades or pulling heavy objects. Shifting between system modes Note: Do not perform these operations if the rear wheels are slipping. Note: Some noise may be heard as the 4x4 system shifts or engages. This is normal. In order to reduce engagement noise, it is recommended that all shifts be performed at speeds below 3 mph (5 km/h). Note: The vehicle should not be driven in 4X4 High with the hub locks disengaged as this condition may damage driveline system components. • Engage the locking hubs by rotating the hub lock control from FREE to LOCK, then move the transfer case lever from 2H (2WD) to 4H (4x4 High) at a stop or a vehicle speed below 3 mph (5 km/h). 2013 F-250/350/450/550 (f23) Owners Guide gf, 3rd Printing, December 2012 USA (fus)